ARK-trol Explosion-proof Special Purpose Power Connectors
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ARK-trol Explosion-proof Special Purpose Power Connectors

Crouse-Hinds series ARK-trol RPX explosion-proof special purpose power connectors are used for connection of devices ranging from lighting units and power tools requiring only a power supply circuit, to sophisticated control and instrumentation assemblies requiring disconnect.

Certified for use in Class I, Divisions 1 & 2 areas which are hazardous due to the presence of explosive gases or vapors.

Certifications and compliances

  • Class I, Divisions 1 & 2, Group D*
  • Explosion-proof
  • Raintight

*RPX series is suitable for hazardous areas due to the presence of gasoline or other gases or vapors of equivalent hazard (comparable to NEC Class I, Group D), where construction and test procedures are required to meet applicable sections of MIL-STD-810E.

Design features

  • High strength impact extruded aluminium shell parts
  • "Tri-Disc" insert assemblies
  • Contacts snap in after termination
  • Positive polarisation
  • Interchangeability of inserts in each shell size
  • Grounding contacts, where used, make first and break last
  • The RPX "time slot" delayed action feature prevents complete withdrawal of the plug in one continuous movement, eliminating the possibility of a circuit breaking arc occurring in a hazardous area

Standard materials

  • Back boxes and adaptors – Feraloy iron alloy
  • Plug, receptacle and cord connector shells – impact extruded aluminium
  • Sealing wafer – silicone rubber
  • Contacts – hard drawn copper